Sonar - a device that bounces sound waves off under-water objects and then records the echoes of these sound waves. Seafloor Spreading Model Name Date Block. OCEAN FLOOR MAPPING—LAB ACTIVITY Background, continued The discovery of the mid-ocean ridge led to the subsequent development of plate tectonics theory. As sea floor spreading continues will it be offset? _____ How about line segment R-S? _____ Now note the position of line segment T-U. Using the knives or spoons, spread a thick layer of cool whip in the center of the paper plate or wax paper. Spreading rates have been obtained for all branches of the mid-ocean ridge system except the southwest mid-Indian Ocean ridge; its axial magnetic pattern could not be inte. Convection Currents and Sea Floor Spreading PPT. July 17, 2021. Go Further The fastest spreading rate is the northern part of the Pacific plate, which is spreading at approximately 15. This is a mid-ocean ridge. Slab pull c. 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Magma rises toward the surface at mid-ocean ridges. Lab 12 Sea Floor Spreading Answers. Ridge push b. Lab 4: Sea Floor Spreading SEA FLOOR SPREADING ANSWER KEY Table 1 Number of zero point Distance of zero point from center of ridge (kilometers) Age of zero point (millions of years) Rate of sea-floor movement (centimeters/year) 1 32. evidence for sea-floor spreading. In order to run this simulation with your students, you will need to have Java installed on the machines. (when the red triangle flips up or down) Draw the ruler on the ocean floor on your paper. How Plates Create Instructions. This is a mid-ocean ridge. 4 describes the processes that occur at plate boundaries, starting with divergent (spreading) boundaries where new oceanic crust is made. It starts with features and sea floor spreading regions that create particularly. 500 kilometers. 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PLATE TECTONICS - Demo, Lab & Science Stations. 5 s from the transmitted signal and the speed of sound in water (c = 1,480 m s –1 ), Equation 3 tells us that d = (1,480 m s –1 ) (0. If you intend to download and install the theory of plate When the concept of seafloor spreading came along, scientists recognized that it was the mechanism to Page 9/39. , determine how fast the Frodo continent is moving away from the Hobbit ridge). This is a mid-ocean ridge. An up-to-date review. Give your answer in mm/y (millimeters per year). They will also model sea floor spreading at a spreading center such as the Mid-Atlantic Ridge. Ocean Geologic Features. Plate tectonics digital lab B&B Casa di Orione. Again, as noted in yesterday's lesson, they key reason that this lesson is actually designed to be taught over two days is because of the extensive time that students need to actually Graph the sea floor profile, and then begin the post-graph analysis. model name date block sea floor spreading project answer key lab 4 an expedition to the seafloor answer key Seafloor Spreading Lab Answer Key | Two Birds Home This is a mid-ocean ridge. Rate of sea floor spreading for the East Pacific Ridge (inches per year) = Conclusions. The two sides of the ridge are moving in opposite directions leaving a rift that is the site of submarine volcanic eruptions. Oceanography, five 3. sea-floor spreading - a hypothesis that new sea floor is created at mid-ocean ridges and that in the process the continents are pushed apart from each other. Pearson Education Topic 13 Worksheets - Kiddy Math Seafloor spreading questions q pearson seafloor spreading worksheets sea floor spreading pg 23 29. Seafloor spreading is a geologic process where there is a gradual addition of new oceanic crust in the ocean floor through a volcanic activity while moving the older rocks away from the mid-oceanic ridge. Mapping the Mid-Ocean Ridge• The mid-ocean ridge is the longest chain ofmountains in the world. SEA FLOOR SPREADING LAB HMXEARTHSCIENCE COM. Like the scientists before us, we will now merge the ideas of continental drift and seafloor spreading into the theory of plate tectonics. An up-to-date review. Key to Wegener's Puzzling Evidence - Fossils: The continents are surrounded by the continental shelf (stippled pattern), which extends beyond the continent until there is a large change in slope. In 1960, Harry Hess' hypothesis about seafloor spreading was a key component of the plate tectonics revolution. Seafloor Spreading Lab Answers Sea-Floor Spreading Answer Key. 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